建造者模式

/*****建造者模式*****/
//产品
//虚拟建造者
//实际建造者
//指挥者
#include <iostream>
using namespace std;
#pragma once

class House{
public:
	House(){};
	void setfloor(string floor){
		this->floor = floor;
	}
	void setwall(string wall){
		this->wall = wall;
	}
	void setroof(string roof){
		this->roof = roof;
	}
	void printinfo(){
		cout << this->floor.c_str() << endl;
		cout << wall.c_str() << endl;
		cout << roof.c_str() << endl;
	}
private:
	string floor;
	string wall;
	string roof;
};

class AbstractBuilder{
public:
	AbstractBuilder(){
		house = new House();
	};
	AbstractBuilder(const AbstractBuilder& a) = delete;
	AbstractBuilder& operator = (const AbstractBuilder& a) = delete;
	virtual ~AbstractBuilder(){
		if (house != nullptr){
			delete house;
			house = nullptr;
		}
	}
	virtual void buildfloor() = 0;
	virtual void buildwall() = 0;
	virtual void buildroof() = 0;
	virtual House* gethouse() = 0;

	House* house;
};

class ConcreteBuilderA :public AbstractBuilder{
public:
	ConcreteBuilderA(){};
	ConcreteBuilderA(const ConcreteBuilderA& a) = delete;
	ConcreteBuilderA& operator=(const ConcreteBuilderA& a) = delete;
	~ConcreteBuilderA(){
		if (this->house != nullptr){
			delete this->house;
			this->house = nullptr;
		}
	}
	virtual void buildfloor(){
		this->house->setfloor("floorA");
	};
	virtual void buildwall(){
		this->house->setwall("wallA");
	};
	virtual void buildroof(){
		this->house->setroof("roofA");
	};
	virtual House* gethouse(){
		return this->house;
	};
};

class Director{
public:
	Director():builder(nullptr){};
	Director(const Director& a) = delete;
	Director& operator=(const Director& a) = delete;
	~Director(){
		if (builder != nullptr){
			delete builder;
			builder = nullptr;
		}
	}
	void setBuilder(AbstractBuilder* builder){
		this->builder = builder;
	}
	House* construct(){
		this->builder->buildfloor();
		this->builder->buildwall();
		this->builder->buildroof();
		return builder->gethouse();
	}
private:
	AbstractBuilder* builder;
};
//使用
void main(){
	House* house;
	AbstractBuilder* a = new ConcreteBuilderA();
	Director* d = new Director();
	d->setBuilder(a);
	house = d->construct();
	house->printinfo();
	getchar();
}